From the "Physician's Desk Reference":
Peptic ulceration, sometimes severe, perforation, severe gastric bleeding. blurred and/or diminished vision, scotoma and or changes in color vision, potential kidney damage, prolonged bleeding time, and loads of interracton with other drugs with problems like blood clotting problems, etc., etc.
From the "Handbook of Drug-Induced Nutrient Depletion":
It depletes folic acid which can harm DNA metabolism, which causes abnormal cellular development, especially in cells with the most rapid rate of turnover, red and white cells, epithelial cells of the stomach, intestine, vagina, and uterine cervix.
That's just for starters. is that enough?